/Engine/Source/Runtime/Net/Core/Classes/Net/Serialization/FastArraySerializer.h
The function that implements FastTArrayReplication
template<typename Type, typename SerializerType> static bool FastArrayDeltaSerialize ( [TArray](API\Runtime\Core\Containers\TArray)< Type > & Items, [FNetDeltaSerializeInfo](API\Runtime\CoreUObject\UObject\FNetDeltaSerializeInfo) & Parms, SerializerType & ArraySerializer )